CN112021679A - Fuming device for induction heating at front end of cigarette - Google Patents
Fuming device for induction heating at front end of cigarette Download PDFInfo
- Publication number
- CN112021679A CN112021679A CN202011044400.4A CN202011044400A CN112021679A CN 112021679 A CN112021679 A CN 112021679A CN 202011044400 A CN202011044400 A CN 202011044400A CN 112021679 A CN112021679 A CN 112021679A
- Authority
- CN
- China
- Prior art keywords
- heating
- hollow
- heat
- cigarette
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 213
- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 74
- 230000006698 induction Effects 0.000 title claims abstract description 58
- 229910052751 metal Inorganic materials 0.000 claims abstract description 35
- 239000002184 metal Substances 0.000 claims abstract description 35
- 230000000391 smoking effect Effects 0.000 claims abstract description 33
- 230000005294 ferromagnetic effect Effects 0.000 claims abstract description 25
- 238000002791 soaking Methods 0.000 claims description 48
- 239000000835 fiber Substances 0.000 claims description 18
- 238000009413 insulation Methods 0.000 claims description 17
- 238000002955 isolation Methods 0.000 claims description 16
- 239000007787 solid Substances 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims 2
- 239000000779 smoke Substances 0.000 abstract description 20
- 238000005485 electric heating Methods 0.000 abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052799 carbon Inorganic materials 0.000 abstract description 6
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 241000208125 Nicotiana Species 0.000 description 29
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 29
- 239000010410 layer Substances 0.000 description 25
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 12
- 229910052755 nonmetal Inorganic materials 0.000 description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 10
- 229910052782 aluminium Inorganic materials 0.000 description 10
- 229910052802 copper Inorganic materials 0.000 description 10
- 239000010949 copper Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 239000003610 charcoal Substances 0.000 description 9
- 238000004321 preservation Methods 0.000 description 9
- 239000003302 ferromagnetic material Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000005291 magnetic effect Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000007769 metal material Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007723 die pressing method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000006262 metallic foam Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229960002715 nicotine Drugs 0.000 description 1
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/46—Shape or structure of electric heating means
- A24F40/465—Shape or structure of electric heating means specially adapted for induction heating
Landscapes
- General Induction Heating (AREA)
Abstract
The invention belongs to the field of novel cigarette smoking sets, and particularly relates to a smoke generating device for induction heating at the front end of a cigarette. The smoke generating device comprises: a hollow heating cup (2), a heating body (5) and an induction coil (4); the hollow heating cup (2) comprises an upper hollow structure, a lower hollow structure and a baffle plate between the upper hollow structure and the lower hollow structure, a heating body (5) is arranged in the lower hollow structure, and an induction coil (4) is arranged on the periphery of the heating body; the heating body (5) is made of ferromagnetic metal and has a structure capable of penetrating through air. The invention designs a smoke generating device for induction heating at the front end of a cigarette for the first time, a plurality of airflow channels are/is arranged in and/or on the surface of a heating body, air flowing through the surface of the heating body can be rapidly and fully heated, and the problems that the electric heating cigarette is not uniformly heated, the carbon heating cigarette is easy to roast and burn, is difficult to control, has insufficient aroma components and is poor in smoking feeling in the prior art are effectively solved.
Description
Technical Field
The invention belongs to the field of novel cigarette smoking sets, and particularly relates to a smoke generating device for induction heating at the front end of a cigarette.
Background
With the improvement of health consciousness of people, the cigarette which is not combusted by heating is more and more favored by smokers because the cigarette has less harm compared with the traditional cigarette which is combusted by burning and sucking. At present, the heating mode for heating the cigarette without burning comprises the following steps: contact electrical heating, non-contact electrical heating, carbon heating, and the like.
The contact type electric heating means that a cigarette is heated in a direct contact manner to obtain smoke, various heating appliances in various forms such as a tube, a needle or a plate which are heated by electricity are directly contacted with the cigarette or tobacco shreds, and the cigarette or tobacco is directly contacted and baked at the temperature lower than the ignition point of the cigarette, so that the aroma components and smoke components of the tobacco are volatilized, and the smoking requirements of smokers on the tobacco are met.
The method for heating cigarettes or tobacco shreds has the following problems:
firstly, the tobacco shreds directly contacted with the cigarettes or the tobacco shreds can be fully baked, the tobacco shreds at the position slightly far away from the heating body can not be fully baked, and the baking effect has certain non-uniformity on the circumferential cross section of the cigarettes;
secondly, the heating device has small volume and low self heat capacity. The smoker has a certain waiting time for heating before smoking. Because the heating element is in direct contact with the tobacco shreds, in order to ensure the heating effect of the tobacco part far away from the heating element, the surface temperature of the heating element is generally increased by 10-20 ℃ compared with the optimal adaptive heating temperature so as to ensure the heating sufficiency. But at the same time, the problems are that: after the tobacco which is contacted with the heating element is heated for a plurality of times, the baked tobacco substances can be stuck on the heating element, and peculiar smell or heating difficulty is brought to the subsequent smoking of cigarettes.
The existing cigarette heated by charcoal is ignited by a charcoal stick attached to the front end of tobacco, and then the air flowing through the charcoal stick is rapidly heated. When the hot air continues to flow through the cut tobacco part of the cigarette branch end under the suction negative pressure of the smoker, the cut tobacco is baked and heated, so that the non-combustion heating of the cut tobacco part is realized. Therefore, the heating mode can obtain the tobacco fragrance and avoid the generation of a large amount of harmful substances such as tar, nicotine and the like caused by ignition. Although the cigarette heated by the charcoal has the characteristic of lower harm than the existing common cigarette, the charcoal rod is added at the front end of the cigarette, so that the difficulty of cigarette manufacture is increased, the production efficiency is influenced, and the defects that the time required by a consumer to ignite the charcoal rod is long, the charcoal rod is difficult to ignite, and the charcoal rod can possibly have certain peculiar smell during burning exist. Also, the charcoal rod is difficult to control after ignition, and there is some roasting of the tobacco when no smoke is drawn. And the end of the carbon rod is also in direct contact with or relatively close to the cut tobacco, so that the following problems exist: the phenomenon that a small amount of residual tobacco shreds are directly baked or even critically baked is also generated at the tail end of the burning carbon rod.
The existing non-contact electric heating mode is to heat the air flowing through the surface of a smoking set by using input air to be electrically heated, and then introduce the air into a cigarette to be heated in a baking type omnibearing three-dimensional mode by adopting a mode of directly electrifying and heating an annular metal heating element, a flat-layer metal heating element or a combined flat-layer metal heating element.
However, the above-mentioned non-contact electric heating method has the following problems:
first, because of the relation of electricity, the adjacent surfaces of the heating element are insulated from each other and need enough space to prevent short circuit, so that the problem that only the air flowing through the surface layer of the heating element can be sufficiently heated exists;
secondly, the problem of inconvenient temperature measurement and control of the heating element is solved: because the temperature sensor can not be directly installed on the heating body, and on the path of the air flow, the installation and the lead wire are inconvenient, and the problems of air flow, overlarge relative temperature difference between static and flowing when the air is sucked and not sucked and difficult control and determination exist.
The present invention has been made to solve the above problems.
Disclosure of Invention
The invention provides a smoke generating device for induction heating at the front end of a cigarette, which comprises:
a hollow heating cup 2, a ferromagnetic heating body 5 and an induction coil 4;
the hollow heating cup 2 comprises an upper hollow structure, a lower hollow structure and a baffle plate between the upper hollow structure and the lower hollow structure, wherein the upper hollow structure comprises a cigarette accommodating cavity 13, the lower hollow structure comprises a heating element accommodating cavity, and the baffle plate is provided with a heat collecting hole 21 for communicating the cigarette accommodating cavity 13 with the heating element accommodating cavity;
the heating element 5 has a structure capable of passing through air, and the heating element 5 is arranged in a heating element accommodating cavity of the hollow heating cup 2;
the induction coil 4 surrounds the outer wall of the heating body accommodating cavity of the hollow heating cup 2 and is connected with a power supply.
The heating body 5 is made of ferromagnetic metal. The ferromagnetic metal is selected from iron, cobalt and nickel.
The heat-generating body 5 has an air-permeable structure meaning that: the heating body 5 has/forms a plurality of air flow passages inside and/or on the surface.
Preferably, the hollow heating cup 2 is of an integrated structure or a split structure; namely, the upper hollow structure, the lower hollow structure and the baffle between the upper hollow structure and the lower hollow structure are of an integrated structure or of a split structure. The upper hollow structure, the lower hollow structure and the baffle can be divided into two split type connected structures.
Preferably, the upper part of the hollow heating cup 2 is a hollow tubular structure, the lower part is a hollow tubular structure 14 with a top plate, the top plate is used as the baffle plate, and the upper part and the lower part of the hollow heating cup 2 are detachably connected, preferably clamped;
more preferably, the upper hollow tubular structure is made of metal materials, so that heat conduction and processing are facilitated, and the lower hollow tubular structure 14 with the top plate is made of nonmetal materials, so that magnetic conduction is facilitated.
Preferably, the heating element 5 comprises ferromagnetic bundled metal fiber wires or a porous, foamed solid ferromagnetic metal block.
Wherein, the ferromagnetic bundling metal fiber silk refers to: a plurality of bundles of ferromagnetic material (the diameter of the monofilament is 0.5-0.001mm) bundled together according to any rule. Because of the fine air flow passages between the adjacent metal fiber filaments in the metal fiber filament bundle, it is possible to ensure sufficient flow of air between the metal fiber filaments. The plurality of fibers bundled together form the heating element 5, which has a large specific surface area, and when the heating element is heated by the high-efficiency induction coil 4, the air sucked from the outside and flowing over the surface of the heating element can most quickly and fully exchange the heat of each fiber yarn in the heating element 5 to the flowing air.
The porous foamed ferromagnetic metal block is as follows: the metal aggregate is foamed to produce metal blocks with porous honeycomb structures. For example: metal foam blocks, and the like. The specific surface area of the porous and foamed solid ferromagnetic metal block is also large, the airflow channels are numerous, and the air heating effect is similar to that of the bundled metal fiber wires.
Preferably, the heat-generating body accommodating chamber communicates with the outside air.
Preferably, when the upper hollow structure and the lower hollow structure of the hollow heating cup 2 and the baffle between the upper hollow structure and the lower hollow structure are of an integrated structure, the hollow heating cup 2 is made of a non-metal material; more preferably, the hollow heating cup 2 is formed by precisely processing or die pressing non-metallic materials such as microcrystalline glass, ceramics and the like which are high temperature resistant and non-toxic.
Preferably, the heating element 5 is disposed in the heating element accommodating chamber, and the heat insulating ring 10 abuts against the lower end portion of the heating element 5 to limit the same.
Preferably, the cigarette accommodating cavity 13 and the heating element accommodating cavity are cylinders.
Preferably, the metal fiber wires are bundled together in a manner that the metal fiber wires are arranged in parallel with the axis of the heating element accommodating chamber.
Preferably, the smoking device further comprises: a shield ring 6 disposed at the periphery of the induction coil 4.
The shielding ring 6 is made of non-ferromagnetic aluminum, copper, aluminum or copper alloy, etc., which is easy to process, in order to generate electromagnetic shielding effect on the induction coil 4 working in the middle and high frequency ranges. The shielding ring 6 is annularly sleeved on the outer side of the induction coil 4 or is wound on the outer side of the induction coil 4 by a thin metal sheet, so that the phenomenon that the induction magnetic field generated by the energized induction coil 4 generates electromagnetic interference or induction heating on ferromagnetic materials or other equipment at the periphery of the smoke generating device is avoided, and therefore the variable magnetic field generated by the induction coil 4 can be concentrated on the ferromagnetic heating body 5 to the greatest extent to generate eddy current to generate heat. The distance between the inner wall of the shielding ring 6 and the outermost circle of the induction coil 4 is required to be at least 0.5mm, the length of the shielding ring 6 needs to be larger than the axial total length of the induction coil 4, and the length of two ends of the shielding ring 6 is at least larger than or equal to the length of the induction coil 4 by 5mm or more.
Preferably, the smoking device further comprises: two-layer thermal-insulated, insulating isolation layer 7, the parcel of one deck isolation layer 7 is in induction coil 4 surrounds the outer wall in cavity heating cup 2 heat-generating body holding chamber, another 7 parcels of layer isolation layer induction coil 4's outside is between two-layer isolation layer 7 induction coil 4. Therefore, the electromagnetic performance of the induction coil 4 during working can be ensured, and the induction coil 4 can be positioned on the outer wall of the heating body accommodating cavity of the hollow heating cup 2.
The isolation layer 7 is a high-temperature-resistant, insulating and heat-insulating high-temperature adhesive tape, a glass fiber or a heat-shrinkable polymer material wrapping layer. The high temperature resistance means that: at 250 degrees celsius at one atmosphere, no deformation occurs.
Preferably, the inside cavity soaking ware 3 that is provided with of upper portion hollow structure of cavity heating cup 2, it has the roof, set up a plurality of soaking hole 31 on the roof, the inside hollow structure of cavity soaking ware 3 is soaking chamber 32, cavity soaking ware 3 sets up cigarette props up the lower part that holds chamber 13, soaking chamber 32 passes through soaking hole 31 with the cigarette props up holds chamber 13 intercommunication, soaking chamber 32 passes through thermal-arrest hole 21 with the heat-generating body holds the chamber intercommunication.
The soaking device 3 is a hollow cylinder, the lower end is open, and the upper end is provided with a top plate. The soaking device 3 is arranged in the upper hollow structure of the hollow heating cup 2 in an interference fit manner, is made of thin-wall non-ferromagnetic aluminum or copper and the like, and the outer cylindrical surface of the soaking device is preferably in transition fit with the inner wall of the smoke branch hole 13 at the upper part of the heating cavity. The heating cup 2 is made of non-metal materials, and the expansion amount after heating is smaller than that of the metal soaking device 3, so long as the soaking device 3 does not naturally slide in the upper hollow structure of the heating cup 2 at normal temperature. (if the expansion amount of the internal soaking device 3 is larger than that of the heating cavity 2 and the heating cup 2 is a non-metal thin-wall part, the stress concentration at the matching part of the heating cup 2 and the soaking device 3 can be caused to damage if the two non-moving parts are in interference fit according to common knowledge.)
Preferably, the smoking device further comprises: and a temperature sensor 8 which is provided at an end of the heating element 5, is embedded in the heating element 5 by punching a hole at the end of the heating element 5, and detects the temperature of the heating element 5.
Preferably, the smoking device further comprises:
a heat insulating ring 10, a hollow base 11;
the heat insulation ring 10 is arranged at the lower end of the heating body 5, the upper end of the heat insulation ring is abutted against the heating body 5, the lower end of the heat insulation ring is abutted against the hollow base 11, and the hollow structures in the heat insulation ring 10 and the hollow base 11 are communicated with the outside air and the heating body accommodating cavity. The heat insulation ring 10 is connected with the lower part of the hollow heating cup 2 in a matching way through a threaded port, a bayonet, a pin or a self-locking taper and the like.
Preferably, the smoking device further comprises: and the vacuum heat-preservation pipe 9 is arranged on the periphery of the non-metal hollow heating cup 2 and surrounds the shielding ring 6.
Preferably, the longitudinal section of the non-metal hollow heating cup 2 is H-shaped, and the material is glass or ceramic.
Preferably, the material of the shielding ring 6 is non-ferromagnetic material, and includes aluminum, copper, and alloy containing aluminum or copper.
Preferably, the material of the soaking device 3 is non-ferromagnetic material, and comprises aluminum, copper, and alloy containing aluminum or copper.
Preferably, the soaking holes 31 are circumferentially and uniformly distributed on the top plate of the soaking device 3, and an axial airflow channel is arranged inside the heating body 5.
The heating process of the smoke generating device is as follows:
as shown in fig. 1, a cigarette (not shown) is inserted into cigarette receiving chamber 13. When the smoke generating device is started, the induction coil is electrified, and the heating body 5 starts to generate heat. The suction is started, the outside air is sucked from the lower part of the heating cup 2 and is rapidly and fully heated by the heating body 5, and the incandescent high-temperature gas is obtained. When high-temperature incandescent air is sucked into the large-diameter uniform heat cavity 32 formed by the cylindrical inner wall of the uniform heat device 3 from the heat collecting hole 21 with the smaller diameter, the air flow rate is high, the pressure is low, the temperature is high at the front end of the heat collecting hole 21, and the air temperature is relatively slightly lower, the flow rate is slow, and the pressure is high in a region relatively far away from the heat collecting hole 21 and a radial or axial position of the hole. After the incandescent high-speed airflow enters the uniform heating cavity 32, a multi-region micro-flow is generated in the uniform heating cavity 32 under the action of the pressure difference, the heat and the pressure difference are homogenized, the pressure and the temperature of the gas reaching the uniform heating holes 31 are homogenized, the temperature is slightly reduced, the high-temperature gas is sucked into the cigarettes inserted into the cigarette cavity 13 after being subjected to the negative pressure transmitted by smokers, and the homogenized high-temperature gas is used for baking and heating the tobacco parts in the cigarettes. In addition, soaking hole 31 is evenly distributed on the circumference of the top plate of soaking device 3, has ensured that this smoke generating device compares with direct contact heater, and is more even, more abundant to the toasting of tobacco.
Meanwhile, in the process of heat exchange and differential pressure homogenization inside the soaking cavity 32, the input heat of the incandescent gas and the homogenized gas heat are also conducted to the soaking device 3 and finally to the upper part of the heating cup 2. Another source of heat on the heating cup 2 is: the heating body 5 is inductively heated in the heating body accommodating cavity and then is transferred to the lower part of the heating cup 2 through radiation and air conduction, and the lower part of the heating cup 2 directly transfers heat to the upper part of the heating cup 2. This portion of the heat conducted to the upper portion of the heating cup 2 will also heat the cigarettes inserted into the cigarette accommodating chamber 13. The heating cup 2 of the present invention is designed to fully utilize the heat.
Therefore, the cigarette inserted into the cigarette accommodating cavity 13 is not only heated by the uniform high-temperature hot air flow from the plurality of heat equalizing holes 31, but also heated by the uniform baking from the upper part of the heating cup 2 on the outer circumference of the cigarette accommodating cavity 13, thereby uniformly and fully baking and heating the tobacco part of the cigarette, and showing the advantages of circumferential heating, sheet type or needle type central heating compared with direct contact heating. And when the smoking of the cigarette is finished, the problems of adhesion of tobacco substances heated in the center, retention of tobacco sections in the smoking set and the like do not exist, so that the process of taking out the cigarette from the smoking set is simplified, and the structure specially used for taking out the cigarette is avoided.
The technical scheme can be freely combined on the premise of no contradiction.
The invention has the following beneficial effects:
1. the invention designs an electric heating smoke generating device for instantly and inductively heating sucked and passing air for the first time, the heating principle is induction heating, a plurality of airflow channels are arranged in and/or on the surface of a heating body, and the air flowing through the surface and the inside of the heating body can be rapidly and fully heated, so that the problems that the electric heating cigarette is not uniformly heated, the carbon heating cigarette is easy to roast and burn, is difficult to control, has insufficient aroma components and is poor in smoking feeling in the prior art are effectively solved.
2. In the preferred technical scheme, the heating element is a ferromagnetic bundling metal fiber wire with large specific surface area or a ferromagnetic porous foamed solid ferromagnetic metal block. Compared with a ring-shaped, flat-layer or combined flat-layer metal heating body, the heating body provided by the invention has numerous fine air flow channels inside, has higher air flow dispersity, and can quickly and fully heat air flowing through the surface and inside of the heating body.
2. In the preferred technical scheme, the even heater 3 is arranged between the heating body 5 and the cigarette accommodating cavity 13 for the first time, under the action of pressure difference, the even heat cavity 32 in the even heat cavity has multi-region micro-flow homogenized heat and pressure difference, the multi-region micro-flow homogenized heat and pressure difference are generated in the even heat cavity 32, the gas which is relatively homogenized and has a certain temperature reduction is sucked into the cigarettes inserted into the cigarette accommodating cavity 13 after the gas reaches the even heat holes 31 and is subjected to negative pressure generated by suction, and the tobacco part in the cigarettes is roasted and heated by the homogenized high-temperature gas.
3. In a more preferable technical scheme, the soaking holes 31 are uniformly distributed on the circumference of the top plate of the soaking device 3, and the dispersion degree of the high-temperature gas is high. Compared with the existing contact type electric heating, non-contact type electric heating and carbon heating methods, the smoke generating device provided by the invention can be used for more uniformly and fully baking tobacco, and the problems of adhesion of the baked tobacco substances, retention of tobacco sections in smoking tools and the like caused by contact type electric heating are avoided.
4. Further, the heating cup 2 of the present invention accommodates a cigarette in the upper part and a heating element in the lower part. The heating body mainly provides an air heating mode, and simultaneously, the rest heat is transferred to the lower part of the heating cup 2 in a radiation and air conduction mode and then is directly conducted to the upper part of the heating cup 2 from the lower part of the heating cup 2, so that the cigarette is baked. The heating cup 2 of the present invention is designed to fully utilize the heat.
Drawings
Fig. 1 is a longitudinal sectional view of a smoking device inductively heated at the front end of a cigarette according to example 1, and the right side is a partially enlarged view.
Fig. 2 is a perspective view of a hollow heat spreader 3 of the smoke generating apparatus of example 1.
Fig. 3 is a longitudinal sectional view of the smoking device inductively heated at the front end of a cigarette according to example 2, and the right side is a partially enlarged view.
List of reference numerals:
1. the cigarette heat-insulating device comprises a jack seat, 2, a heating cup, 21, a heat collecting hole, 3, a soaking device, 31, a uniform heat hole, 32, a uniform heat cavity, 4, an induction coil, 5, a heating body, 6, a shielding ring, 7, an insulating layer, 8, a temperature sensor, 9, a vacuum heat-insulating tube, 10, a heat-insulating ring, 11, a hollow base, 12, a coil lead, 13, a cigarette accommodating cavity, 14, a hollow tubular structure with an integrated top plate, 141 and a top plate through hole.
Detailed Description
The present invention will be further described with reference to the following embodiments.
Example 1
1-2, example 1 provides a smoking device inductively heated at the front end of a cigarette, the smoking device comprising:
the device comprises a jack seat 1, a nonmetal hollow heating cup 2, a hollow soaking device 3, an induction coil 4, a heating body 5, a shielding ring 6, a heat insulation and insulation isolation layer 7, a temperature sensor 8, a vacuum heat preservation pipe 9, a heat insulation ring 10 and a hollow base 11;
the heating cup 2 is H-shaped in longitudinal section, and is made of high-temperature-resistant and non-toxic nonmetal materials such as microcrystalline glass and ceramics with high processing precision. The heating cup 2 is of an integrated structure and comprises an upper hollow structure, a lower hollow structure and a baffle plate between the upper hollow structure and the lower hollow structure, wherein the upper hollow structure comprises a cigarette accommodating cavity 13, the lower hollow structure comprises a heating element accommodating cavity, and the baffle plate is provided with a heat collecting hole 21 for communicating the cigarette accommodating cavity 13 with the heating element accommodating cavity;
the heating element 5 comprises a ferromagnetic bundling metal fiber wire or a porous foaming solid ferromagnetic metal block, the heating element 5 is arranged in a heating element accommodating cavity of the heating cup 2, the heating element accommodating cavity is communicated with the outside air, and an axial airflow channel is arranged in the heating element 5;
the induction coil 4 surrounds the outer wall of the heating body accommodating cavity of the heating cup 2 and is connected with a power supply through the coil lead 12. The induction coil 4 is manual control when starting up originally, and at the overall process that the suction goes on, smoke generating device carries out timely automatically regulated according to the temperature that temperature sensor 8 detected to induction coil 4's electrical parameter to reach and satisfy the required heat of cigarette suction.
The ferromagnetic bundling metal fiber wire of the embodiment 1 refers to: and a metal fiber bundle formed by bundling a plurality of fibers (the diameter of each monofilament is 0.5-0.001mm) made of ferromagnetic materials together in a manner that the metal fiber yarns are arranged in parallel with the axis of the heating body accommodating cavity. The specific surface area of the porous and foamed solid ferromagnetic metal block is also large, the airflow channels are numerous, and the air heating effect is similar to that of the bundled metal fiber wires.
The heating body 5 is arranged in the heating body accommodating cavity and is limited and fixed by the heat insulation ring 10 at the lower end.
The cigarette accommodating cavity 13 and the heating body accommodating cavity are cylinders.
The shielding ring 6 is made of non-ferromagnetic material, including aluminum, copper, and alloy containing aluminum or copper, and is disposed on the periphery of the induction coil 4. The shielding ring 6 is made of non-ferromagnetic aluminum, copper, aluminum or copper alloy, etc., which is easy to process, in order to generate electromagnetic shielding effect on the induction coil 4 working in the middle and high frequency ranges. The shielding ring 6 is annularly sleeved on the outer side of the induction coil 4 or is wound on the outer side of the induction coil 4 by a thin metal sheet, so that the phenomenon that the induction magnetic field generated by the energized induction coil 4 generates electromagnetic interference or induction heating on ferromagnetic materials or other equipment at the periphery of the smoke generating device is avoided, and therefore the variable magnetic field generated by the induction coil 4 can be concentrated on the ferromagnetic heating body 5 to the greatest extent to generate eddy current to generate heat. The distance between the inner wall of the shielding ring 6 and the outermost circle of the induction coil 4 is required to be at least 0.5mm, the length of the shielding ring 6 needs to be larger than the axial total length of the induction coil 4, and the length of two ends of the shielding ring 6 is at least larger than or equal to the length of the induction coil 4 by 5mm or more.
Smoke generating device includes two-layer thermal-insulated, insulating isolation layer 7, and one deck isolation layer 7 parcel is in induction coil 4 surrounds the outer wall in cavity heating cup 2 heat-generating body holding chamber, another layer of isolation layer 7 parcel induction coil 4's outside, between two-layer isolation layer 7 do induction coil 4, need wrap one deck isolation layer 7 before on induction coil 4 winding heating chamber 2 outer wall promptly and around the back. Therefore, the electromagnetic performance of the induction coil 4 during working can be ensured, and the induction coil 4 can be positioned on the outer wall of the heating body accommodating cavity of the hollow heating cup 2. The isolation layer 7 is a high-temperature-resistant, insulating and heat-insulating high-temperature adhesive tape, a glass fiber or a heat-shrinkable polymer material wrapping layer.
The inside cavity soaking ware 3 that is provided with of upper portion hollow structure of cavity heating cup 2, it has the roof, set up a plurality of soaking hole 31 that is circumference evenly distributed on the roof, the inside hollow structure of cavity soaking ware 3 is soaking chamber 32, cavity soaking ware 3 sets up the cigarette props up the lower part that holds chamber 13, soaking chamber 32 passes through soaking hole 31 with the cigarette props up holds chamber 13 intercommunication, soaking chamber 32 passes through heat collecting hole 21 with the heat-generating body holds the chamber intercommunication. The diameter of the soaking hole 31 is 0.3-1 mm.
The soaking device 3 is a hollow cylinder, the lower end is open, and the upper end is provided with a top plate. The soaking device 3 is arranged in the upper hollow structure of the hollow heating cup 2 in an interference fit manner, is made of thin-wall non-ferromagnetic aluminum or copper and the like, and the outer cylindrical surface of the soaking device is preferably in transition fit with the inner wall of the smoke branch hole 13 at the upper part of the heating cavity. The heating cup 2 is made of non-metal materials, and the expansion amount after heating is smaller than that of the metal soaking device 3, so long as the soaking device 3 does not naturally slide in the upper hollow structure of the heating cup 2 at normal temperature.
The temperature sensor 8 is provided at the lower end of the heating element 5, and is embedded in the heating element 5 by punching a hole in the lower end of the heating element 5, for detecting the temperature of the heating element 5.
The heat insulation ring 10 is arranged at the lower end of the heating body 5, the upper end of the heat insulation ring is abutted against the heating body 5, the lower end of the heat insulation ring is abutted against the hollow base 11, and the hollow structures in the heat insulation ring 10 and the hollow base 11 are communicated with the outside air and the heating body accommodating cavity. The heat insulation ring 10 is in threaded connection and matching with the interior of the hollow structure at the lower part of the hollow heating cup 2.
The heat insulation ring 10 is made of high-temperature-resistant ceramic or quartz glass.
The vacuum heat preservation pipe 9 is arranged on the periphery of the hollow heating cup 2 and surrounds the shielding ring 6. Under the condition of not influencing the appearance or the use, the vacuum heat-preservation pipe 9 can be wrapped with a heat-preservation heat-insulation material or other heat-preservation heat-insulation materials are used for replacing the vacuum heat-preservation pipe 9, so that the heat generated in the vacuum heat-preservation pipe is reduced to the periphery as far as possible, the heat efficiency is improved, and the damage to devices, circuits and the like near the heating cavity or the increase of the bad experience of users is avoided. Of course, the use of the vacuum insulation tube 9 is only an optimal method and is not the only method for limiting the present invention.
The non-metal hollow heating cup is characterized in that the jack seat 1 is arranged at the upper end of the non-metal hollow heating cup 2 and is fixed to the positions of the heating cup 2 and the heat preservation pipe 9, and the jack seat 1 is provided with a central through hole for inserting a cigarette.
Example 2
Referring to fig. 3, embodiment 2 provides a smoking device inductively heated at the front end of a cigarette, which is different from embodiment 1 in that: the hollow heating cup 2 is of a split structure. The hollow heating cup 2 has an upper portion having a hollow tubular structure and a lower portion having a hollow tubular structure 14 with an integral top plate as the above-mentioned baffle plate, and the top plate has a top plate through hole 141 as the heat collecting hole 21 of embodiment 1. The upper part and the lower part of the hollow heating cup 2 are clamped.
The upper hollow tubular structure is made of metal materials and facilitates heat conduction and processing, and the lower hollow tubular structure 14 with the top plate is made of nonmetal materials and facilitates magnetic conduction.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A smoking device for induction heating of a leading end of a cigarette, the smoking device comprising:
a hollow heating cup (2), a ferromagnetic heating body (5) and an induction coil (4);
the hollow heating cup (2) comprises an upper hollow structure, a lower hollow structure and a baffle plate between the upper hollow structure and the lower hollow structure, wherein the upper hollow structure comprises a cigarette accommodating cavity (13), the lower hollow structure comprises a heating element accommodating cavity, and the baffle plate is provided with a heat collecting hole (21) which is communicated with the cigarette accommodating cavity (13) and the heating element accommodating cavity;
the heating body (5) has a structure capable of passing through air, and the heating body (5) is arranged in a heating body accommodating cavity of the hollow heating cup (2);
the induction coil (4) surrounds the outer wall of the heating body accommodating cavity of the hollow heating cup (2) and is connected with a power supply, and the heating body accommodating cavity is communicated with the outside air.
2. A smoking device according to claim 1 wherein the hollow heating cup (2) is of one-piece construction or of a split construction.
3. A smoking device according to claim 1 wherein the upper portion of the hollow heating cup (2) is a hollow tubular structure and the lower portion is a hollow tubular structure (14) with a top plate as a baffle according to claim 1, the upper and lower portions of the hollow heating cup (2) being removably connected.
4. A smoking device according to claim 1, further comprising: a shield ring (6) disposed at the periphery of the induction coil (4);
the heating body (5) comprises ferromagnetic bundling metal fiber wires or porous foamed solid ferromagnetic metal blocks.
5. A smoking device according to claim 1, further comprising: two-layer thermal-insulated insulating isolation layer (7), one deck isolation layer (7) parcel is in induction coil (4) surround the outer wall in cavity heating cup (2) heat-generating body holding cavity, another layer isolation layer (7) parcel induction coil (4)'s outside, between two-layer isolation layer (7) do induction coil (4).
6. The smoking device according to claim 1, wherein a hollow soaking device (3) is arranged in the hollow structure at the upper part of the hollow heating cup (2) and is provided with a top plate, a plurality of soaking holes (31) are arranged on the top plate, the hollow structure in the hollow soaking device (3) is a soaking cavity (32), the hollow soaking device (3) is arranged at the lower part of the cigarette accommodating cavity (13), the soaking cavity (32) is communicated with the cigarette accommodating cavity (13) through the soaking holes (31), and the soaking cavity (32) is communicated with the heating body accommodating cavity through the heating holes (21).
7. A smoking device according to claim 1, further comprising: and a temperature sensor (8) embedded in the heating element (5).
8. A smoking device according to claim 1, further comprising:
a heat insulation ring (10), a hollow base (11);
wherein, heat insulating ring (10) sets up the lower extreme of heat-generating body (5), and the upper end supports and leans on heat-generating body (5), lower extreme support and lean on cavity base (11), the inside hollow structure intercommunication outside air of heat insulating ring (10) and cavity base (11) with the heat-generating body holds the chamber.
9. A smoking device according to claim 1 wherein the heat generating body (5) has an axial airflow passage therein.
10. A smoking device according to claim 6 wherein the heat spreader holes (31) are evenly distributed circumferentially on the top plate of the heat spreader (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011044400.4A CN112021679B (en) | 2020-09-28 | 2020-09-28 | Smoke generating device for induction heating at front end of cigarette holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011044400.4A CN112021679B (en) | 2020-09-28 | 2020-09-28 | Smoke generating device for induction heating at front end of cigarette holder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112021679A true CN112021679A (en) | 2020-12-04 |
| CN112021679B CN112021679B (en) | 2024-07-05 |
Family
ID=73574635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011044400.4A Active CN112021679B (en) | 2020-09-28 | 2020-09-28 | Smoke generating device for induction heating at front end of cigarette holder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112021679B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113662271A (en) * | 2021-08-09 | 2021-11-19 | 深圳市基克纳科技有限公司 | Heating structure of aerosol generating device and aerosol generating device |
| CN113693294A (en) * | 2021-08-30 | 2021-11-26 | 惠州市新泓威科技有限公司 | Aerosol generating device with induction heating tube |
| CN114246366A (en) * | 2021-12-20 | 2022-03-29 | 深圳市基克纳科技有限公司 | Induction heating type aerosol forming device and application thereof |
| CN114246367A (en) * | 2021-12-20 | 2022-03-29 | 深圳市基克纳科技有限公司 | Electromagnetic induction heating aerosol forming device and application thereof |
| CN114468386A (en) * | 2021-12-30 | 2022-05-13 | 深圳市基克纳科技有限公司 | Heating device and low-temperature non-combustion smoking set |
| WO2022266808A1 (en) * | 2021-06-21 | 2022-12-29 | 深圳沃德韦科技有限公司 | Atomization device and heating assembly thereof |
| WO2023000924A1 (en) * | 2021-07-19 | 2023-01-26 | 云南中烟工业有限责任公司 | Cigarette having ferromagnetic heating cap, electric heating vaping system, and use method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207754539U (en) * | 2017-08-28 | 2018-08-24 | 深圳市合元科技有限公司 | A kind of double heating cryotronics cigarettes |
| CN111264910A (en) * | 2020-03-23 | 2020-06-12 | 惠州市沛格斯科技有限公司 | Heating module and electronic smoking set |
| CN212414752U (en) * | 2020-09-28 | 2021-01-29 | 云南中烟工业有限责任公司 | Fuming device for induction heating at front end of cigarette |
| WO2021189799A1 (en) * | 2020-09-28 | 2021-09-30 | 云南中烟工业有限责任公司 | Smoking apparatus for induction heating at front end of cigarette |
-
2020
- 2020-09-28 CN CN202011044400.4A patent/CN112021679B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207754539U (en) * | 2017-08-28 | 2018-08-24 | 深圳市合元科技有限公司 | A kind of double heating cryotronics cigarettes |
| CN111264910A (en) * | 2020-03-23 | 2020-06-12 | 惠州市沛格斯科技有限公司 | Heating module and electronic smoking set |
| CN212414752U (en) * | 2020-09-28 | 2021-01-29 | 云南中烟工业有限责任公司 | Fuming device for induction heating at front end of cigarette |
| WO2021189799A1 (en) * | 2020-09-28 | 2021-09-30 | 云南中烟工业有限责任公司 | Smoking apparatus for induction heating at front end of cigarette |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022266808A1 (en) * | 2021-06-21 | 2022-12-29 | 深圳沃德韦科技有限公司 | Atomization device and heating assembly thereof |
| WO2023000924A1 (en) * | 2021-07-19 | 2023-01-26 | 云南中烟工业有限责任公司 | Cigarette having ferromagnetic heating cap, electric heating vaping system, and use method |
| CN113662271A (en) * | 2021-08-09 | 2021-11-19 | 深圳市基克纳科技有限公司 | Heating structure of aerosol generating device and aerosol generating device |
| CN113693294A (en) * | 2021-08-30 | 2021-11-26 | 惠州市新泓威科技有限公司 | Aerosol generating device with induction heating tube |
| CN114246366A (en) * | 2021-12-20 | 2022-03-29 | 深圳市基克纳科技有限公司 | Induction heating type aerosol forming device and application thereof |
| CN114246367A (en) * | 2021-12-20 | 2022-03-29 | 深圳市基克纳科技有限公司 | Electromagnetic induction heating aerosol forming device and application thereof |
| WO2023115813A1 (en) * | 2021-12-20 | 2023-06-29 | 深圳市基克纳科技有限公司 | Aerosol formation device using electromagnetic induction heating, and use thereof |
| CN114468386A (en) * | 2021-12-30 | 2022-05-13 | 深圳市基克纳科技有限公司 | Heating device and low-temperature non-combustion smoking set |
| CN114468386B (en) * | 2021-12-30 | 2024-01-05 | 深圳市基克纳科技有限公司 | Heating device and low-temperature non-combustion smoking set |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112021679B (en) | 2024-07-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112021679A (en) | Fuming device for induction heating at front end of cigarette | |
| WO2021189799A1 (en) | Smoking apparatus for induction heating at front end of cigarette | |
| CN106690427B (en) | Low-temperature tobacco smoking set heated by hot air flow | |
| CN212414752U (en) | Fuming device for induction heating at front end of cigarette | |
| JP2020000249A (en) | Heating smokable material | |
| WO2018201656A1 (en) | Electrically heated tobacco smoking device | |
| CN112021678B (en) | Smoke generating device for induction heating of folding air passage | |
| CN213344346U (en) | Aerosol generator | |
| CN107455801B (en) | Electric heating type non-combustion cigarette device | |
| CN109832662B (en) | Cigarette capable of not burning by heating | |
| CN218921659U (en) | Heating non-burning smoking set | |
| CN111588089A (en) | Oxygen-deficient heated smoking articles with retractable needles, tobacco products, and methods of use | |
| WO2022061911A1 (en) | Smoke generating device for induction heating in folding air channel | |
| CN212590298U (en) | Fuming device in folding air flue induction heating | |
| CN218921699U (en) | Air heating assembly and heating non-combustion smoking set | |
| CN108552602B (en) | Electric heating smoking device with heat distribution function | |
| CN110074460B (en) | Electronic cigarette atomization core, atomizer and method for generating smoke by electronic cigarette | |
| EP3942949B1 (en) | Smoking apparatus for enhancing heat exchange effect | |
| CN215736935U (en) | Radial piercing type heating smoking set | |
| CN212590231U (en) | Closed heating cigarette with controllable suction resistance | |
| CN208480614U (en) | A kind of electric heating smoking set | |
| CN112120292A (en) | Fuming device for enhancing heat exchange effect | |
| CN114190582A (en) | Partially burning cigarette | |
| CN217564968U (en) | Aerosol-generating article comprising tobacco material | |
| CN211211443U (en) | Structure for improving thermal conductivity of circumferentially-heated non-combustible smoking set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |